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Two lenses (1) and (2) with R_(1) = R_(2) = 0.20 m each are made from glasses with mu_(1) = 1.2 and mu_(2) = 1.6 respectively. The two lenses with a separation of 0.345 m are submerged in a liquid with mu_(1) = 1.4. The focal lenghts of (1) and (2) are found. An object is placed at a distance of 1.3m from lens 1. The focal lenght of 2 is : |
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Answer» `- 700 cm` `mu_(g)= 1.2, mu_(l) = 1.4` `R_(1) = 0.2 m, R_(2) = - 0.2 m` `f_(2) = + 70 cm` |
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